baber/WOPTO huggingface dataset:
Patent CA-2059438-A1 (CA)
Title: Process and device for the production of mineral fibers
Inventor: AUBE JEAN-YVES
IPC: C03B37/01
Filed: 1992-01-15
Abstract: Techniques for obtaining inorganic fibres from a thermoplastic material of high melting point and more precisely the control of the flow rate and of the temperature of the jet of molten material distributed on the fibre-making machine. The invention proposes to make the molten material pass through a storage chamber where a control of the flow rate and also a check on the height of molten material vertically above the casting orifice are performed using the inclination of the storage chamber. The invention applies to the production of rock wool. <IMAGE>
Patent CA-2061023-A1 (CA)
Title: Zinc alloy powder for alkaline cell and method to produce the same
Inventor: ASAOKA JUNICHI
IPC: H01M4/42
Filed: 1992-02-11
Abstract: A non-amalgamated zinc alloy powder for use in an alkaline cell which consists of an elemental component selected from among the following compositions (1) to (6) (1) 0.01 to 0.5% by weight of bismuth, 0.01 to 0.5% by weight of indium and 0.01 to 0.5% by weight of lead, (2) 0.01 to 0.5% by weight of bismuth, 0.01 to 0.5% by weight of indium and 0.005 to 0.5% by weight of calcium, (3) 0.01 to 0.5% by weight of lead and up to 1.0 % by weight in total of at least one member selected from the group consisting of bismuth, aluminum and calcium, (4) 0.005 to 0.5% by weight of calcium, 0.01 to 0.5% by weight of bismuth and 0 to 0.5% by weight of aluminum. (5) 0.01 to 0.5% by weight of lead, 0.01 to 0.5% by weight of indium, 0.01 to 0.5% by weight of calcium and 0 to 0.5% by weight of aluminum, and (6) 0.01 to 0.5% by weight of lead, 0.01 to 0.5% by weight of indium, less than 0.01 % by weight of calcium and 0.01 to 0.5% by weight of aluminum, and the balance being zinc and containing 1 ppm or less of iron, and which can greatly suppress the evolution of hydrogen gas and maintain the discharge performance on a practical level, and the method to produce the same.
Patent CA-2062541-A1 (CA)
Title: Apparatus and method for blasting and metal spraying
Inventor: GONDA JOHN K
IPC: B24C3/32
Filed: 1992-03-09
Abstract: 56,871 ABSTRACT OF THE DISCLOSURE A method and  apparatus  for  automatically grit blasting and metal spraying a wall of a vessel utilizing a pair of rails with  arms slidably  disposed thereon, which rotate 180-  in unison  about the  axis of  the vessel and then reverse and are  moved incrementally  along the rails upon completion of each 180° of rotation until the wall of the vessel is grit blasted and then sprayed  with multiple thin layers of molten metal.
Patent CA-2063698-A1 (CA)
Inventor: BENNITT ROBERT A
IPC: F16C5/00
Filed: 1992-03-20
Abstract: Docket No. 1014-EPCD            Abstract of the Disclosure A housing, feet therefor, and casings, formed of common, readily available tubular stock, of uniform thickness, are assembled and welded together to define a frame for a crankshaft and crosshead assemblies.  The tubular housing has openings in the sides thereof in which to receive the casings, and has apertures, also in sides thereof, in which to journal a crankshaft.  The casings include transverse webs with arcuate ways formed therein for slidably supporting crosshead shoes thereon.
Patent CA-2063974-A1 (CA)
Title: Dataflow dependency backtracking method
Inventor: HAVENS WILLIAM S
IPC: G06F17/00
Filed: 1992-03-25
Abstract: Abstract The Invention propagates an Event.  An Event consists of a pair, a Binding and a Label.  The term "binding" refers to the domain or set of possible values that a variable could equal or be "bound" to.  A new binding represents the new domain of a variable after some change has occurred in the old domain or the old binding of the variable.  A Label is the set of rules or Horn Clause choices that caused the new binding to occur.  The new binding is used during the Proof Procedure  and  the  Label  is  used  during  Intelligent Backtracking.  The Invention is a component of the Dataflow Dependency Backtracking Mechanism ("DDBM").  The DDBM is an expert system reasoning engine [Havens91a].  The prior art describes many different types of expert system reasoning engines.  The DDBM exists in software form and realized in the programming language of the Echidna Constraint Logic Programming (CLP) system [HavSide91].     The utility of the Invention has not only been evidenced in the laboratory but also in several practical applications such as the intelCAD system, an intelligent computer design program [CalDick91], the IGI project, a real-time process control   and   monitoring   system   [HavDill91],   and knowledge-based diagnosis [HavJones 91].
Patent CA-2065345-A1 (CA)
Title: Variable air/fuel ratio engine control system with closed-loop control around maximum efficiency and combination of otto-diesel throttling
Inventor: VAN DUYNE EDWARD A
IPC: F02B3/06
Filed: 1991-05-22
Abstract: System for controlling a spark ignition engine to maxi-mize fuel efficiency over its entire range of operating conditions. The system includes apparatus (20) for controlling the amount of fuel delivered to the engine and apparatus (26) for measuring the internal cylinder pressure in at least one cylinder of the en-gine. Apparatus is provided for estimating the air mass entering the engine and computing apparatus (20) calculates the engine efficiency from the amount of fuel delivered, the internal cylin-der pressure and the estimated air mass entering the engine. In one embodiment, efficiency is measured by calculation of the approximate indicated specific fuel consumption. Apparatus (20) is provided for varying the amount of fuel delivered to the engine to minimize the indicated specific fuel consumption over the entire range of operating conditions of the engine. In this embodiment, apparatus is provided which is responsive to a de-sired engine power output beyond wide open throttle plate and apparatus is provided for delivering a greater quantity of fuel be-yond the wide open throttle plate posiiton maximum efficiency point.
Patent CA-2070537-A1 (CA)
Title: Tractor-mounted integrated gladhand and quick-release valve for tractor-trailer highway vehicles
Inventor: HART JAMES D
IPC: B60T17/04
Filed: 1992-06-05
Abstract: TRACTOR-MOUNTED INTEGRATED GLADHAND AND QUICK-RELEASE VALVE FOR TRACTOR-TRAILER HIGHWAY VEHICLES                   Abstract Of The Disclosure An integrated gladhand and quick-release valve for tractor-trailer highway vehicles is mounted on the tractor, as opposed to the trailer, to the operator of a particular tractor will uniformly have quick-release capability for any trailer drawn by the truck.  The integrated gladhand and quick-release valve provides an inlet port for fluid communication from the tractor brake system and an outlet port for fluid communication to the trailer brake system.  The intermediate passageway that provides fluid communication between the inlet and outlet ports contains a valve element.  The valve element may be apertured to allow limited, continuous fluid communication between the tractor and trailer brake lines.  During the quick-release mode, the tractor side is substantially isolated and the trailer side is vented through an exhaust port.  The present invention provided a uniform and safe braking system for tractor-trailer highway vehicles where the tractor operator does not own or maintain the trailers.  The present invention provides an improved integrated gladhand and quick-release valve that reduces the response time of trailer brakes to application and release of the brake pedal and reduces hysteresis effects.
Patent CA-2071447-A1 (CA)
Title: Crossbar switch and parallel processing system using the same
Inventor: MATSUMOTO KINYA
IPC: H04Q3/52
Filed: 1992-06-17
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed is an improved integrated circuit crossbar switch and a parallel processing system using the same.  The crossbar switch comprises a lattice of signal paths each comprising a pair of signal conductors, and a plurality of contacts each arranged on each crossing in the lattice network.  Also, each crossing has a control signal line for controlling the opening-and-closing of the contact.  The parallel processing system comprises a stack of bus-printed disks each having an integrated circuit crossbar switch just described.  A plurality of pairs of communication lines of equal length are printed on each disk, each pair extending from the corresponding pair of signal conductors of the center crossbar switch.  Likewise, control lines radially extend from the corresponding control signal lines of the central crossbar switch.  Boards each having a processing or switching control unit can be electrically and mechanically connected to the stack of bus-printed disks.  Use of a pair of communication conductors for each radial communication path permits simultaneous data transfer between one procesing unit and each of two other processing units, accordingly increasing the processing speed.
Patent CA-2072177-A1 (CA)
Title: Composite flat blank for containers and method
Inventor: SYKORA JOHN M
IPC: B65D5/32
Filed: 1992-06-25
Abstract: ABSTRACT    A paperboard flat blank is scored for folding to form a container sleeve.   The flat blank comprises at least first and  second  flat  blank  portions  which  have  been  sealed together along a seal line or lines to form the entire, flat blank.   The majority of the area of each flat blank portion is free of contact with the other flat blank portion, i.e., the respective portions are not separate layers of a flat blank, but are separate, spaced portions thereof, connected together by one or more seal lines. The first flat blank portion exhibits at least one physical property that is dif-ferent from the corresponding physical property of the second flat blank portion, other than the scoring and the shape and size in the plane of the flat blank.  For example, one flat blank may be made of recycled material and the other of vir-gin material.  The two flat blanks may have differing thick-nesses, or differing surface treatment, one being impregnated with oil or plastic and the other being free of such impreg-nation, or the like.
Patent CA-2072294-A1 (CA)
Title: Apparatus for processing extrudable materials
Inventor: VINCENT MAURICE W
IPC: B29C48/405
Filed: 1992-06-26
Abstract: ABSTRACT         APPARATUS FOR PROCESSING EXTRUDABLE MATERIALS      A  method and apparatus are disclosed for  processing extrudable  materials  in  such  a  way  as  to  apply   a controlled and predetermined degree of shear force to  the materials.    Typically, an extruder apparatus comprises a  housing having  first  and  second  screws  mounted  therein   for rotation on a common axis, the arrangement being such that longitudinal thrust forces exerted by the first screw  are at  least  partially compensated by  corresponding  forces generated by the second screw, inlet means for introducing material to  be processed into the housing  and  a  shear generating device located between said screws, said device including  a restriction through which material is forced from said housing to exit from said housing.    The  restriction is preferably an annular gap  formed by  a sleeve fixed relatively to the housing and  a  shaft portion which extends into the sleeve.
Patent CA-2072592-A1 (CA)
Title: Conversion treatment method and composition for aluminum and aluminum alloys
Inventor: YOSHIDA MASAYUKI
IPC: C23C22/38
Filed: 1991-02-13
Abstract: The paint adhesion and corrosion resistance of surfaces of aluminum and its alloys, particularly when using a paint based on poly(vinyl chloride), is improved by using a conversion coating solution having a pH in the range from 1.0 to 3.0 and containing: (A) an amount of phosphate ions that is stoichiometrically equivalent to at least 5.0 g/L of phosphoric acid; (B) at least 1.0 g/L of hexavalent chromium; (C) at least 0.1 g/L of fluoride ions; and (D) a complex fluoride ion component selected from the group consisting of: (i) at least 4.0 g/L of fluosilicate ions, (ii) at least 0.5 g/L of fluoborate ions, (iii) at least 2.0 g/L of fluozirconate ions, and (iv) at least 2.0 g/L of fluotitanate ions.
Patent CA-2075037-A1 (CA)
Title: Methods and reagents for hla drbeta dna typing
Inventor: ERLICH HENRY A
IPC: C12Q1/68
Filed: 1991-12-06
Abstract: Primers for amplification of specific nucleic acid sequences of the second exon of HLA DRbeta genes and probes for identifying polymorphic sequences contained in the amplified DNA can be used in processes for typing homozygous or heterozy-gous samples from a variety of sources and for detecting allelic variants not distinguishable by serological methods. This HLA DRbeta DNA typing system can be used in a dotblot format that is simple and rapid to perform, produces detectable signals in minutes, and can be used for tissue typing, determining individual identity, and identifying disease susceptible individuals.
Patent CA-2079535-A1 (CA)
Title: Poly hydroxybutyrate/hydroxy-valerate based hot melt adhesive
Inventor: KAUFFMAN THOMAS
IPC: C08G63/06
Filed: 1992-09-30
Abstract: Hot melt adhesive compositions are prepared from 20 to 90% by weight of a linearpolyester of 3-hydroxybutyric and 3-hydroxyvaleric acids containing 9 to 35% of the hydroxyvalerate component; 10 to 80% by weight of a polar tackifier having a Ring and Ball softening point (as described by ASTM E-26) greater than about 60°C; 0 to 50% by weight of a plasticizer; 0 to 30% by weight of a wax diluent and 0-3% by weight of a stabilizer; 0-20% of a compatible polymer.  But utilizing a naturally occurring, thermoplastic, biodegradable copolymer as the base polymer, these adhesives advance the state of the art of hot melt adhesives by alleviating the dependence on petroleum based materials and by allowing for the development of hot melt adhesives which either degrade naturally after coming in contact with the soil or which can be composted.
Patent CA-2079699-A1 (CA)
Inventor: TAKITA MASATOSHI
IPC: C03B19/14
Filed: 1992-10-02
Abstract: A silica glass optical fiber superior in resistance to ultraviolet rays, which fiber comprises a doped silica glass cladding layer formed on a silica glass core, said silica glass core having an OH content of 10-1000 ppm, a fluorine content of 50-5000 ppm, and being substantially free of chlorine.
Patent CA-2080263-A1 (CA)
Inventor: DEGEN PETER J
IPC: A23C9/142
Filed: 1992-10-09
Abstract: A method for treating raw milk to produce treated milk having a lower bacterial content than the raw milk. The milk is homogenized and within about 5 minutes from the homogenization, subjected to dynamic microfiltration, to yield a filtrate which has a lower bacterial content than the initial raw milk. The resultant milk can be sterile, free from Bacillus cereus bacteria that usually causes degradation of milk quality during refrigerated storage.  The milk can be shipped even under non-refrigerated conditions without spoilage, for extended periods of time.
Patent CA-2080385-A1 (CA)
Title: A method of subtitling motion picture films
Inventor: NACHMANSON SAVELY
IPC: G03C11/02
Filed: 1992-10-07
Abstract: ABSTRACT OF THE DISCLOSURE      A method of subtitling motion picture films in which graphics elements, characters, or texts are added to a motion picture film by means of a laser beam travelling over the zone to be marked of the film, comprises the following two steps: a first step, in which a laser etching operation is performed by applying a laser beam whose speed of displacement over the film lies in the range about 1 cm/s to about 200 cm/s, with its power on the film lying in the range about 100 milliwatts to about 20 watts, and with the ratio V/P of the displacement speed expressed in cm/s divided by the power on the film expressed in watts lying in the range 10 to 30 so as to be high enough for the laser beam to achieve complete transformation of the emulsion in the etched zones by causing the emulsion to be heated, softened, and dislocated, but without totally eliminating the transformed emulsion; and a second step, in which the etched film is subjected to cleaning treatment for cleaning the etched zones so that the particles of emulsion that have been heated and dislocated by the laser beam are eliminated from those zones of the film that have previously been marked by the low power laser beam, thereby causing transparent subtitles to appear.
Patent CA-2080505-A1 (CA)
Title: Apparatus and method for independent movement of an instrument within a linear eversion catheter
Inventor: LOWERY GUY R
IPC: A61M25/01
Filed: 1992-10-14
Abstract: ABSTRACT APPARATUS AND METHOD FOR INDEPENDENT MOVEMENT OF AN   INSTRUMENT WITHIN A LINEAR EVERSION CATHETER       A method of positioning an elongated instrument in an everting  catheter  is  disclosed.    The  everting  catheter includes an inflatable everting element which circumscribes a region of the instrument and which is inflated to grip the instrument.  The everting catheter and instrument extend into a patient to a desired region within the body.   Flush solution is introduced between the everting element and the instrument,  and the instrument is moved relative to the everting element while the flush solution is between the everting element and the instrument.
Patent CA-2080913-A1 (CA)
Inventor: WILSON MAHLON S
IPC: H01M8/10
Filed: 1992-02-18
Abstract: A gas reaction fuel cell incorporates a thin catalyst layer between a solid polymer electrolyte (SPE) membrane arid a porous electrode backing. The catalyst layer is preferably less than about 10 µm in thickness with a carbon supported platinum catalyst loading less than about 0.35 mgPt/cm2. The film is formed as an ink that is spread and cured on a film release blank. The cured film is then transferred to the SPE membrane and hot pressed into the surface to form a catalyst layer having a controlled thickness and catalyst distribution.       Alternatively, the catalyst layer is formed by applying a Na+ form of a perfluorosulfonate ionomer directly to the membrane, drying the film at a high temperature, and then converting the film back to the protonated form of the ionomer. The layer has adequate gas permeability so that cell performance is not affected and has a density and particle distribution effective to optimize proton access to the catalyst and electronic continuity for electron flow from the half-cell reaction occurring at the catalyst.
Patent CA-2087425-A1 (CA)
Title: 2'-fluorofuranosyl derivatives and novel method of preparing 2'-fluoropyrimidine and 2'-fluoropurine nucleosides
Inventor: WYSOCKI RONALD J JR
IPC: C07H19/10
Filed: 1991-07-19
Abstract: The instant invention is drawn to 2'-fluoroarabinofuranosyl compounds and a process for preparing same.
Patent CA-2087682-A1 (CA)
Inventor: WEDER DONALD E
IPC: B65B67/08
Filed: 1993-01-20
Abstract: A flower pot cover consisting of a base (12) and a skirt (14). The base has an upper end (46) and a lower end (48) with a pot opening (52) being formed through the upper end of the base providing access to a pot receiving space (54). The skirt is connected to the upper end of the base and the skirt extends a distance outwardly from the base terminating with an outer periphery. A bonding material is disposed on the skirt or the base or both. A flower pot (44) is disposed in the pot receiving space and the portion of the skirt and/or the base having the bonding material thereon is crimped to provide a crimped portion (56) for cooperating to maintain the flower pot cover connected to the flower pot. <IMAGE>
Patent CA-2089721-A1 (CA)
Title: Differential pressure switch for stored gas pressure vessel
Inventor: MARCHANT BRENT R
IPC: B60R21/16
Filed: 1993-02-17
Abstract: PATENT                    ABSTRACT OF THE DISCLOSURE   Two electrically conductive diaphragms which are disposed in generally parallel relation and are symmetrical mirror images of each other are joined to a non-conductive ring.  The diaphragms are joined in a pressurized atmosphere of argon at, for example, 3000 psi.   When so pressurized internally and with lower external pressure,  the  diaphragms  do  not  contact  each  other.    When pressurized externally to a pressure to a predetermined level higher than the internal pressure, the diaphragms make contact with each other to close an electric circuit.  If pressure leaks into the switch or the external pressure drops, the diaphragms separate and break contact with each other.            PA220300.AHS
Patent CA-2089729-A1 (CA)
Inventor: JOGLEKAR MANOHAR A
IPC: H04M1/2747
Filed: 1992-06-19
Abstract: A radio telephone interface apparatus for speed dialing any of a plurality of stored sequences of digits forming telephone numbers. Pre-stored telephone numbers are stored in an electronic memory. Actuation of switches permits either sequential access to each of the stored telephone numbers or direct, nonsequential access to a desired set of stored telephone numbers. When the telephone numbers are sequentially access, mneumonic information associated with each one of the telephone numbers is provided to a voice synthesizer to provide an aural indication of the telephone numbers stored within individual ones of the directory locations.
Patent CA-2091159-A1 (CA)
Title: Prostaglandin i2 derivatives
Inventor: ASAI TOMOYUKI
IPC: C07D307/937
Filed: 1991-09-05
Abstract: A novel prostaglandin I2 derivative selected from a prostaglandin I2 having a halogen atom on the carbon atom corresponding to the 7-position of natural prostaglandin I2 and having a cycloalkylene group in the .alpha.-chain, and its esters and salts.
Patent CA-2091901-A1 (CA)
Title: Machine for cleaning gratings by means of an oscillating arm for hydraulic weirs
Inventor: GIMENEZ GARCES JOSE LUIS
IPC: E02B8/02
Filed: 1992-07-17
Abstract: Machine for cleaning gratings for hydraulic weirs, comprising an oscillating arm (3) which oscillates at a pivoting point (2), and a double-acting cylinder (9) intended to position the oscillating arm (3). The above mentionned arm bears, in its interior, a carriage (5) carring the blade (11), which slides by means of wheels (6) rolling on two rails (4), this arrangement making possible the access to any point of the grating for cleaning purposes, owing to the above-mentioned sliding of the carriage (5) inside the arm (3) and also to the displacement of the machine along the weir by means of the rails or guides on which may slide the rollers integral with the base of the machine.
Patent CA-2094185-A1 (CA)
Inventor: PEVZNER BORIS
IPC: F04B11/00
Filed: 1993-04-16
Abstract: Method and apparatus for supplying from a vessel to a pump liquified gas with subcooling so as to avoid cavitation during pumping.  A supply conduit supplies liquified gas from the vessel bottom to a pump sump which envelops the flowpath elements of a pump and the pump suction.  A return conduit returns vapor and excess liquified gas from the sump to the bottom of the vessel.  Heating means, preferably heat leak into the return conduit, reduces the density of the fluid in the return conduit thereby increasing the rate of liquified gas flow in the supply conduit and reducing its temperature rise enroute to the pump.  Further subcooling is secured by locating the intake to the supply conduit remote from a wall of the vessel in a cooler strata of liquid, and the discharge of the return conduit proximate to a wall of the vessel in a warmer strata in the vessel. The low flow friction losses in the supply and return conduits enhance the circulation rate of liquified gas in the conduits, and the short supply conduit reduces the heat leak into the liquified gas flow in the supply conduit, so that sufficient subcooling is achieved with reduced elevation of the vessel above the pump sump and reduced pressurization of the vessel compared to prior art.